ApproxOp - A Unified Framework for Positive Linear Approximation Operators
Provides a unified computational framework for defining,
evaluating, analyzing, comparing, and visualizing positive
linear approximation operators. The package supports classical
and generalized discrete operators, ordinary and central
moments, numerical moment verification, approximation error
analysis, convergence studies, parameter studies, and
user-defined operators. The implemented framework is related to
classical and generalized approximation operators described in
Szász (1950) <doi:10.6028/JRES.045.024>, Sucu and Varma (2015)
<doi:10.1016/j.amc.2015.08.077>, and Aliaga and Aslan (2026)
<doi:10.1002/mma.70924>.
